<template>
  <!-- 级联面板-->
  <el-cascader-panel
    ref="test"
    v-model="checkedNodes"
    :options="options"
    :props="{ multiple: true }"
    :change="handNodeChange()"
  />
</template>

<script>
export default {
  data() {
    return {
      checkedNodes: [['guide', 'disciplines', 'consistency']],
      options: [
        {
          value: 'guide',
          label: 'Guide',
          children: [
            {
              value: 'disciplines',
              label: 'Disciplines',
              children: [
                {
                  value: 'consistency',
                  label: 'Consistency',
                  children: null,
                },
                {
                  value: 'feedback',
                  label: 'Feedback',
                  childre: []
                },
                {
                  value: 'efficiency',
                  label: 'Efficiency'
                },
                {
                  value: 'controllability',
                  label: 'Controllability'
                }
              ]
            },
            {
              value: 'navigation',
              label: 'Navigation',
              children: [
                {
                  value: 'side nav',
                  label: 'Side Navigation'
                },
                {
                  value: 'top nav',
                  label: 'Top Navigation'
                }
              ]
            }
          ]
        },
        {
          value: 'component',
          label: 'Component',
          children: [
            {
              value: 'basic',
              label: 'Basic',
              children: [
                {
                  value: 'layout',
                  label: 'Layout'
                },
                {
                  value: 'color',
                  label: 'Color'
                },
                {
                  value: 'typography',
                  label: 'Typography'
                },
                {
                  value: 'icon',
                  label: 'Icon'
                },
                {
                  value: 'button',
                  label: 'Button'
                }
              ]
            },
            {
              value: 'form',
              label: 'Form',
              children: [
                {
                  value: 'radio',
                  label: 'Radio'
                },
                {
                  value: 'checkbox',
                  label: 'Checkbox'
                },
                {
                  value: 'input',
                  label: 'Input'
                },
                {
                  value: 'input-number',
                  label: 'InputNumber'
                },
                {
                  value: 'select',
                  label: 'Select'
                },
                {
                  value: 'cascader',
                  label: 'Cascader'
                },
                {
                  value: 'switch',
                  label: 'Switch'
                },
                {
                  value: 'slider',
                  label: 'Slider'
                },
                {
                  value: 'time-picker',
                  label: 'TimePicker'
                },
                {
                  value: 'date-picker',
                  label: 'DatePicker'
                },
                {
                  value: 'datetime-picker',
                  label: 'DateTimePicker'
                },
                {
                  value: 'upload',
                  label: 'Upload'
                },
                {
                  value: 'rate',
                  label: 'Rate'
                },
                {
                  value: 'form',
                  label: 'Form'
                }
              ]
            },
            {
              value: 'data',
              label: 'Data',
              children: [
                {
                  value: 'table',
                  label: 'Table'
                },
                {
                  value: 'tag',
                  label: 'Tag'
                },
                {
                  value: 'progress',
                  label: 'Progress'
                },
                {
                  value: 'tree',
                  label: 'Tree'
                },
                {
                  value: 'pagination',
                  label: 'Pagination'
                },
                {
                  value: 'badge',
                  label: 'Badge'
                }
              ]
            },
            {
              value: 'notice',
              label: 'Notice',
              children: [
                {
                  value: 'alert',
                  label: 'Alert'
                },
                {
                  value: 'loading',
                  label: 'Loading'
                },
                {
                  value: 'message',
                  label: 'Message'
                },
                {
                  value: 'message-box',
                  label: 'MessageBox'
                },
                {
                  value: 'notification',
                  label: 'Notification'
                }
              ]
            },
            {
              value: 'navigation',
              label: 'Navigation',
              children: [
                {
                  value: 'menu',
                  label: 'Menu'
                },
                {
                  value: 'tabs',
                  label: 'Tabs'
                },
                {
                  value: 'breadcrumb',
                  label: 'Breadcrumb'
                },
                {
                  value: 'dropdown',
                  label: 'Dropdown'
                },
                {
                  value: 'steps',
                  label: 'Steps'
                }
              ]
            },
            {
              value: 'others',
              label: 'Others',
              children: [
                {
                  value: 'dialog',
                  label: 'Dialog'
                },
                {
                  value: 'tooltip',
                  label: 'Tooltip'
                },
                {
                  value: 'popover',
                  label: 'Popover'
                },
                {
                  value: 'card',
                  label: 'Card'
                },
                {
                  value: 'carousel',
                  label: 'Carousel'
                },
                {
                  value: 'collapse',
                  label: 'Collapse'
                }
              ]
            }
          ]
        },
        {
          value: 'resource',
          label: 'Resource',
          children: [
            {
              value: 'axure',
              label: 'Axure Components'
            },
            {
              value: 'sketch',
              label: 'Sketch Templates'
            },
            {
              value: 'docs',
              label: 'Design Documentation'
            }
          ]
        }
      ]
    }
  },
  mounted() {},
  methods: {
    handNodeChange() {
      console.log('handNodeChange', this.checkedNodes)
    }
  }
}
</script>

<style scoped>
.main {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}

.chartItem {
  width: 300px;
  height: 300px;
  margin: 20px;
}
</style>
